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Precision-Engineered for Absolute Purity

The RO Protect Clean Series is designed to act as a comprehensive “Shield” for downstream equipment:

True Three-Layer Architecture with four different pore diameters : Featuring an outer “pre-filter” layer, a high-capacity middle zone, and a dense “final-filter” inner core. This graded density ensures deep-bed particulate capture.

99.98% Efficiency: Using advanced PLC control technology, we ensure that particle retention meets absolute standards for sizes encoded on the cartridge markings.

Zero Fiber Migration: Our specialized extrusion process creates thermally bonded fibers that will not release or “shed” during fluctuations in flow or pressure—critical for high-purity applications.

Extreme Chemical Compatibility: 100% FDA-certified polypropylene construction ensures compatibility with a vast range of industrial chemical solutions and aggressive water chemistries

Global Industrial Specifications

Feature	RO Protect Clean Series Specifications
Micron Ratings	0.1 micron to 200 micron (Absolute)
Available Lengths	5 inches to 70 inches
Efficiency Rating	99.98% (Beta 5000)
Surface Finishes	Grooved, Orange Peel, Hairy, or Smooth
End Connections	DOE, Code 7 (226/Fin), 222 (Fine/Flat)
Contaminants	Ferric Oxide, Microbial Organisms, Silt, Scale

Suggested equivalent products

• *Pall® Poly-Matrix Series – RO Protect Clean Series Absolute

• *GE Osmonics® Purtrex Series – RO Protect Clean Series Absolute

• *Pentair® P Series – RO Protect Clean Series Absolute

RO Protect Clean Series Absolute filter equivalent Pall® Poly-Matrix Series?

Yes, the RO Protect Clean Series Absolute (melt-blown depth filter) serves as a direct functional and structural equivalent.

When looking for alternatives to the Pall® Poly-Matrix Series or comparable high-efficiency industrial depth filters, the RO Protect Clean Series aligns on the following criteria:

Equivalency Overview

Feature	RO Protect Clean Series Absolute	Pall® Poly-Matrix / Equivalent Lines
Material	100% Pure Polypropylene (Binder-free, Resin-free)	100% Polypropylene depth matrix
Efficiency Rating	Absolute-Rated (99.98% / Beta 5000)	High-efficiency absolute retention profiles
Structure	Multi-layer graded density depth filtration	Graded density structure for maximized dirt-holding capacity
Primary Use	RO membrane pre-filtration, high-purity water loops, and fine particulate control	Critical industrial and high-purity water pre-filtration

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Frequently Asked Questions

Q1: What does “Absolute” rating mean for the RO Protect Clean Series?

Answer: Unlike nominal filters that only capture a percentage of particles, the RO Protect Clean Series Absolute provides a 99.98% efficiency rating (Beta Ratio 5000). This means if the filter is rated at 1 micron, it is lab-verified to capture 99.98% of all particles 1 micron or larger. This precision is critical for protecting sensitive Reverse Osmosis (RO) membranes from premature fouling

Q2: Is the RO Protect Clean series compatible with Pall and Pentair housings?

Answer: Yes. Our Absolute series is engineered as a 100% functional interchange for industry-standard housings.

Pall Compatibility: Excellent replacement for Pall Profile II and Nexis series.

Pentair Compatibility: Direct fit for Pentek/Pentair industrial housings, including the high-capacity Big Blue and standard slimline series.

End-Cap Options: We offer all standard configurations, including Double Open End (DOE), Code 7 (226/Bayonet), and Code 3 (222/Flat) to ensure a leak-proof fit in your existing system.

Pall or Pentair systems often search for “Code 7 absolute filter” or “222 O-ring filter.” 

Q3: How does the “Multi-Layer” design improve filtration?

Answer: The RO Protect Clean Absolute uses three-layer gradient density technology

1. Outer Layer: Acts as a pre-filter to trap large sediment
2. Middle Layer: Captures mid-sized particles to prevent internal clogging.
3. Inner Core Layer: The final absolute barrier that ensures the target micron rating is met.

This design provides a much higher dirt-holding capacity than single-layer filters, meaning fewer filter changes and lower operating costs.

Q4: Are these filters safe for food, beverage, and medical applications?

Answer: Absolutely. The RO Protect Clean series is manufactured from 100% FDA-compliant virgin polypropylene. It is thermally bonded without the use of resins, binders, or adhesives, ensuring zero fiber migration and no chemical leaching into your process water.

Q5: What are the typical applications for the RO Protect Clean Absolute?

Answer: Due to its high precision, this series is the preferred choice for:

Pre-RO Filtration: Desalination and brackish water treatment

Electronics/IC Manufacturing: Cleaning water for semiconductors

Food & Beverage: Polishing water for bottling and brewing.

Pharmaceuticals: Pre-filtration for high-purity water loops.

Chemical Processing: Filtering etching solutions and fine chemicals

Q6: What does “Absolute 99.98%” efficiency actually mean?

Most filters are “Nominal,” meaning they catch most particles at a certain size. Our Absolute Series is tested to ensure that 99.98% of all particles at the rated micron size are captured. This precision is vital for protecting high-pressure pumps and expensive RO membranes in the USA, Europe, Africa and Middle East.

Q7: Does K Filter offer custom surface finishes?

Yes. To maximize surface area and dirt-holding capacity, we can customize your cartridges with Grooved, Orange Peel, or Hairy surface finishes. These textures increase the effective filtration area, allowing for higher flow rates and lower pressure drops.

Q8: Are these filters manufactured with a core?

We provide maximum flexibility. Filters are available with a reinforced Polypropylene core for high-pressure applications or as a non-core version for standard filtration needs and easy disposal.

Q9: How does being based in Qatar benefit global clients?

As a Qatar-based leader, we are strategically located at the crossroads of major shipping routes. This allows for rapid logistics to the Middle East,Africa, Asia, USA and Europe, ensuring your plant never faces downtime due to a lack of critical filtration stock.

Q10: When to Choose RO Protect Clean (Melt-Blown)

“The Precision Specialist”

Absolute Particle Retention: Use this when you need a guarantee that 99.98% of particles at a specific micron (e.g., 1µm) are removed. This is essential for protecting expensive RO Membranes and Desalination systems.

Zero-Shedding Environments: Because the fibers are thermally bonded (melted together), there is zero risk of loose fibers entering the clean water stream. This makes it the standard for Food & Beverage and Microelectronics.

Advanced Flow Control: The PLC-controlled density layers allow for a lower initial pressure drop (ΔP) in high-purity water loops.

Q10: When to Choose Purewound (String Wound)

“The Rugged Workhorse”

Heavy Sediment Loading: If you are dealing with high concentrations of sand, silt, or rust from a raw water source, the Purewound series has a larger “internal volume” to hold dirt before it clogs.

Extreme Temperatures: While Melt-Blown is generally limited to 60-80°C, the Purewound Series (especially in Cotton or Glass Fiber) can withstand up to 401°C

Viscous Fluids: String wound filters are naturally better at handling thick, high-viscosity liquids like oils and resins without “blinding” (surface clogging).

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Performance Table (Cross-Reference)

K Filter Model (Series)	Brand Interchange	Efficiency	Common Applications
RO Protect Clean Absolute	Pall Profile II	99.98% (Absolute)	Critical Process Water
RO Protect Clean Absolute	Pentair/Pentek	99.98% (Absolute)	RO Membrane Protection
RO Protect Clean Absolute	Suez/GE / 3M	99.98% (Absolute)	Food & Bev / Pharma

Comparison Technial Data

Technical Comparison: RO Protect Clean (Melt-Blown) vs. Purewound (String Wound)

Feature	RO Protect Clean Series (Melt-Blown)	Purewound Series (String Wound)
Filtration Type	Absolute (99.98% Efficiency)	Nominal (Graded Depth)
Structure	Thermally Bonded Micro-fibers	Spiral Wound Yarn (Diamond Pattern)
Best Application	Critical RO Protection / Pharma / Food	Raw Water / Pre-Filtration / High Dirt
Micron Precision	⭐⭐⭐⭐⭐ (High – down to 0.1µm)	⭐⭐⭐ (Moderate – down to 0.5µm)
Dirt Holding	High (Multi-layer Graded Density)	Superior (Deepest Bed Filtration)
Media Migration	Zero (Thermally bonded)	Minimal (Low migration yarn)
Surface Options	Grooved, Orange Peel, Hairy	Standard Smooth / Napped
Structural Rigidity	High (Self-supporting or PP Core)	Extreme (Stainless Steel or PP Core)

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Is it RO Protect Clean Series Absolute filter equivalent GE Osmonics® Purtrex Series – RO Protect Clean Series Absolute?

Yes, the RO Protect Clean Series Absolute filter serves as an equivalent or alternative to the GE Osmonics® Purtrex Series (now under SUEZ / Veolia).

FAQ: RO Protect Clean Series Absolute vs. *GE Osmonics® Purtrex Series

Q1: Is the RO Protect Clean Series Absolute a direct equivalent to the GE Osmonics Purtrex series?

Yes. Both filters are engineered out of 100% pure polypropylene using melt-blown depth technology. They are designed to trap particles via true graded-density matrices (loose structure on the outside, tighter structure on the inside) to maximize dirt-holding capacity.

Q2: How do their filtration efficiency ratings compare?

• GE Osmonics Purtrex: Historically offered as a high-performance nominal-to-high efficiency depth filter meeting broad industrial specifications.
• RO Protect Clean Series Absolute: Certified to Absolute Efficiency (99.98% / Beta 5000). This means the RO Protect Clean Absolute provides a higher, strictly verified retention grade, making it especially ideal for critical applications like protecting sensitive Reverse Osmosis (RO) membranes.

Q3: Are the materials safe for high-purity and food/beverage applications?

Yes. Both filters are manufactured from 100% pure virgin polypropylene without the use of binders, resins, adhesives, wetting agents, or lubricants. They comply with FDA food contact regulations (such as FDA 21 CFR).

Q4: Will the RO Protect Clean filter fit into existing housings designed for Purtrex?

Yes. The RO Protect Clean series matches standard global industrial dimensions and comes in standard outer diameters and lengths (e.g., 10″, 20″, 30″, 40″). It is compatible with standard industrial filter housings (such as standard and heavy-duty style housings previously paired with Osmonics lines).

Equivalency Overview: RO Protect Clean Series Absolute vs. *GE Osmonics® Purtrex Series

The table below provides a side-by-side technical comparison between the RO Protect Clean Series Absolute and the GE Osmonics® Purtrex Series (Veolia/SUEZ) to help you evaluate performance and compatibility:

Feature / Specification	RO Protect Clean Series Absolute	*GE Osmonics® Purtrex Series
Filter Construction	100% Pure Polypropylene (Melt-blown depth)	100% Pure Polypropylene (EnviroSpun melt-blown process)
Filtration Efficiency	Absolute-Rated (99.98% / Beta 5000)	Typically nominal-to-high efficiency (some strict grading lines vary by exact Purtrex sub-spec)
Binders, Resins, Additives	None (Zero binders, adhesives, or wetting agents)	None (Pure polypropylene, FDA-compliant)
Density Structure	True multi-layer graded density (coarse outer layers, fine inner layers)	True graded density matrix for optimized dirt-holding capacity
Primary Applications	Pre-filtration for RO membranes, DI water loops, and critical industrial process water	General industrial water filtration, pre-RO, food & beverage, and chemical processing
Compatibility	Standard industrial lengths (10″, 20″, 30″, 40″) and standard/heavy-duty diameters	Standard industrial dimensions matching global housing standards

Is it RO Protect Clean Series Absolute filter equivalent Pentair® P Series- yes

While both filters are built from 100% pure polypropylene and use thermal bonding instead of glues or resins, they operate at different precision tiers.

• The Pentair P Series is a nominal depth filter best suited for general-purpose sediment reduction.
• The RO Protect Clean Series is an absolute-rated filter (99.98% efficiency).

Therefore, the RO Protect Clean Series is not just a direct physical drop-in replacement (fitting the exact same sump dimensions and housing footprints), but it is an upgrade that delivers higher filtration precision, making it ideal for systems requiring strict membrane protection.

Equivalency Overview: RO Protect Clean Series Absolute vs. Pentair® P Series

Feature / Specification	Pentair (Pentek) P Series	RO Protect Clean Series (Absolute)
Filtration Efficiency	Nominal (typically ~85% efficiency rating)	Absolute (99.98% efficiency / Beta 5000)
Material Composition	100% Pure Polypropylene (spun-blown)	100% FDA-Certified Virgin Polypropylene
Structure / Design	True graded density (outer-to-inner)	Multi-layer, PLC-controlled variable density / 3D fiber bonding
Binding Agents / Resins	None (thermally bonded)	None (thermally bonded, zero-migration)
Housing Compatibility	Fits standard industrial and slimline housings	Direct drop-in fit for standard housings & high-capacity systems (DOE, Code 7, 222)
Primary Application	General sediment pre-filtration	High-purity pre-RO filtration, critical process water, and high-load membrane protection

Q1: Can the RO Protect Clean Absolute filter be used directly in housings that take Pentair P Series filters?

A: Yes. The RO Protect Clean series is engineered to match standard industry dimensions. It will fit seamlessly into the same standard filter housings, slimlines, and multi-cartridge industrial vessels that accommodate Pentair/Pentek cartridges.

Q2: What is the main operational difference between the two filters?

A: The primary difference lies in filtration accuracy. Pentair P Series filters are nominal-rated (meaning they capture a high percentage of particles at their rated micron size, but allow some smaller or similarly sized particles through). The RO Protect Clean series is absolute-rated at 99.98% (Beta 5000), meaning virtually all particles at or above the stated micron rating are trapped on the first pass.

Q3: When should I upgrade from a Pentair P Series to the RO Protect Clean Absolute series?

A: You should upgrade to the absolute series if:

• Your Reverse Osmosis (RO) or Nanofiltration (NF) membranes are fouling prematurely due to fine colloidal or silt slippage.
• Your application demands high-purity water requirements (e.g., food & beverage polishing, pharmaceutical pre-treatment, or electronics manufacturing).
• You need a verifiable, lab-tested efficiency rating (99.98%) rather than a general nominal rating.

Q4: Does switching to the RO Protect Clean series affect water flow or pressure drop ($\mathrm{\Delta }P$ΔP)?

A: Despite offering tighter absolute filtration, the RO Protect Clean series utilizes a multi-layer, PLC-controlled gradient density structure. This design optimizes void space, ensuring a low initial pressure drop and a high dirt-holding capacity comparable to standard depth cartridges.

Q5: Are both filters free of chemical binders and additives?

A: Yes. Both the Pentair P Series and the RO Protect Clean series are manufactured from 100% pure polypropylene without binders, adhesives, wetting agents, or antistatic additives, ensuring they do not leach contaminants into high-purity water streams.

*Brand name are used only for reference.